Sleigh-brake.



G. BRISSON.

SLEIGH BRAKE.

AIPLIOATION FILED AUG. 22, 1911.

1,019,944, Patented Mar. 12,1912.

Witnesses I Inventor Aton ey;

GEORGE BRISSON, OF NORWAY, MICHIGAN.

SLEIGH-BRAKE.

Specification of Letters Patent.

Application filed August 22, 1911.

Patented Mar. 12, 1912.

Serial No. 645,332.

To all whom it may concern:

Be it known that I, Gnonen BRISSON, a citizen of the United States, residing at Norway, in the county of Dickinson and State of Michigan, have invented a new and useful Sleigh-Brake, of which the following is a specification.

This invention relates to brakes, and has for its object to provide a simple, serviceable and convenient brake for use in connection with sleighs, sleds or the like.

Another object of the invention is to provide a brake of this character which can be conveniently brought into operation and when released assumes a normal inoperative position.

WVith the above and other objects in view, this invention is embodied in the novel arrangement, combination and construction of parts as hereinafter described and as pointed out in the appended claim, the invention being illustrated in the accompanying drawings, in which similar reference characters indicate similar parts, and in which Figure 1 is a plan view of a bob sled embodying the present invention. Fig. 2 is a side elevation thereof. Fig. 3 is a section on the line 33 of Fig. 1, the relative parts being shown in operative position.

Referring specifically to the drawings, the runners of the bob sled are designated at 5-5, which are connected at an intermediate portion by the usual cross beam 6 and the front ends of which are connected by a cross bolt or rod 12. On the front side of the beam 6 is mounted a rock shaft 16, the same being preferably mounted through the eye-bolts 7 secured to the said beam, and the outer end of the said rock shaft has secured thereto a suitable operating lever 17 A pair of arms are secured to the rock shaft 16 and normally extend forwardly therefrom, the outer or free ends thereof converging slight-1y together and being connected near the outer extremities by a cross rod 9. On each end of the rod 12 within the runners 5 is pivotally mounted a lever 13 which are spaced apart by a sleeve or tubular member 11 on. the said bolts. The levers 13 are formed of angle irons, the respective flanges thereof projecting upwardly and inwardly, and the said levers converge toward their rear ends. A pair of coiled springs 15 are secured to the inner or free ends of the said levers and to the front side of the beam 6, the said contractile springs tending to raise the rear or inner ends of the said levers. Across the bottom flanges of the said levers and at the rear ends of the same are secured the dogs 1 1, which are preferably of angle iron with one flange thereof secured to the inner flanges of the said levers and the other flange depending from the said levers. A contractile coiled spring 10 is secured at one end to the cross rod 9 connecting the outer ends of the arms 8 and at the other end to the intermediate portion of the sleeve or tubular member 11, thus tending to pull the cross rod 9 forwardly. The upstanding flanges of the levers 13 are provided with elongated slots 18 at the rear ends thereof, through which slots the cross rod 9 passes, the arms 8 being disposed outside of the levers 13.

In use, the lever 17, or rather the rock shaft 16, is adapted to be operated from any part of the sled by any suitable means or mechanism (not shown) to swing the arms 8 downward, in which event the cross rod 9 rides rearwardly in the slots 18 and depresses the rear ends of the levers 13 to bring the dogs 141 in contact with the surface over which the sled is being drawn. This contact or engagement of the dogs 14; with the surface over which the sled is being drawn it will be understood, retards or arrests the motion of the sled, and upon the rock shaft 16 being released the spring 10 pulling the cross rod 9 forward and the springs 15 pulling the rear ends of the levers 13 upwardly returns the relative partsto normal inoperative position. The spring 10 is provided for the purpose 'of preventing the arms 8 and cross rod 9 from being locked at or past the dead center as will be understood. It will therefore be seen that the rock shaft 16 in being operated causes the relative parts to come into an operative position and upon the same being released, the relative parts assume a normal inoperative position. It is understood, however, that this mechanism is not only applicable to bob sleds but that the same can be applied to various forms of sleighs and sleds, audit is further understood that this invention is susceptible of alterations in its details of construction and formed within the scope of the appended claim without departing from the spirit of the invention.

What is claimed is:

The combination with a pair of runners and a cross beam, of a rock shaft mounted on the said cross beam, a cross rod connect ing the front ends of the said runners, a pair of levers pivoted 0n the said cross rod and extending rearwardly and having slots in their rear ends, a dog secured to the inner ends of the said levers, a contractile spring secured at one end to the cross beam and at the other end to the rear end of one of the said levers, a pair of arms secured to the said rock shaft, a cross rod secured to the outer ends of the said arms and passing in the presence of two Witnesses.

GEORGE BRISSON.

Witnesses:

JAMES C. KNIGHT, JACOB E. SODERBERG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

